<script setup>
import {
  User,
  Lock
} from '@element-plus/icons-vue'
import { ref, watch } from 'vue'
import {
  userRegisterService,
  userLoginService
} from '@/api/user.js'
import { useUserStore } from '@/stores/counter.js'
import router from '@/router/index.js'

//登录注册切换
const isRegister = ref(false)

//注册表单数据
const formModel = ref({
  username: '',
  password: '',
  repassword: ''
})

//注册确认密码校验函数
const rePassWordModel = (
  rule,
  value,
  callback
) => {
  if (formModel.value.password !== value) {
    callback(new Error('两次输入的密码不一致！'))
  }
  callback()
}
//注册校验规则
const rules = {
  username: [
    {
      required: true,
      message: '请输入用户名！',
      trigger: 'blur'
    },
    {
      min: 1,
      max: 10,
      message: '用户名在1——10个字符内',
      trigger: 'blur'
    }
  ],
  password: [
    {
      required: true,
      message: '请输入密码！',
      trigger: 'blur'
    },
    {
      pattern: /^\S{6,15}$/,
      message: '密码为6——15位非空字符！',
      trigger: 'blur'
    }
  ],
  repassword: [
    {
      required: true,
      message: '请输入密码！',
      trigger: 'blur'
    },
    {
      validator: rePassWordModel,
      trigger: 'blur'
    }
  ]
}

//注册表单数据
const form = ref()
const subminForm = async () => {
  await form.value.validate()
  await userRegisterService(formModel.value)
  ElMessage.success('注册成功！')
}

//登录功能
const userLogin = async () => {
  await form.value.validate()
  const re = await userLoginService(
    formModel.value
  )
  console.log(re)
  const user = useUserStore()
  user.setToken(re.data.token)
  router.push('/')
}

watch(isRegister, () => {
  formModel.value = {
    username: '',
    password: '',
    repassword: ''
  }
})
</script>

<template>
  <el-row class="login-page">
    <el-col :span="12" class="bg"></el-col>
    <el-col :span="6" :offset="3" class="form">
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-if="isRegister"
      >
        <el-form-item>
          <h1>注册</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item prop="repassword">
          <el-input
            v-model="formModel.repassword"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入再次密码"
          ></el-input>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="subminForm"
            class="button"
            type="primary"
            auto-insert-space
          >
            注册
          </el-button>
        </el-form-item>
        <el-form-item class="flex">
          <el-link
            type="info"
            :underline="false"
            @click="isRegister = false"
          >
            ← 返回
          </el-link>
        </el-form-item>
      </el-form>
      <el-form
        :model="formModel"
        :rules="rules"
        ref="form"
        size="large"
        autocomplete="off"
        v-else
      >
        <el-form-item>
          <h1>登录</h1>
        </el-form-item>
        <el-form-item prop="username">
          <el-input
            v-model="formModel.username"
            :prefix-icon="User"
            placeholder="请输入用户名"
          ></el-input>
        </el-form-item>
        <el-form-item prop="password">
          <el-input
            v-model="formModel.password"
            name="password"
            :prefix-icon="Lock"
            type="password"
            placeholder="请输入密码"
          ></el-input>
        </el-form-item>
        <el-form-item class="flex">
          <div class="flex">
            <el-checkbox>记住我</el-checkbox>
            <el-link
              type="primary"
              :underline="false"
              >忘记密码？</el-link
            >
          </div>
        </el-form-item>
        <el-form-item>
          <el-button
            @click="userLogin"
            class="button"
            type="primary"
            auto-insert-space
            >登录</el-button
          >
        </el-form-item>
        <el-form-item class="flex">
          <el-link
            type="info"
            :underline="false"
            @click="isRegister = true"
          >
            注册 →
          </el-link>
        </el-form-item>
      </el-form>
    </el-col>
  </el-row>
</template>

<style lang="scss" scoped>
.login-page {
  height: 100vh;
  background-color: #fff;

  .bg {
    background:
      url('@/assets/logo2.png') no-repeat 60%
        center / 240px auto,
      url('@/assets/login_bg.jpg') no-repeat
        center / cover;
    border-radius: 0 20px 20px 0;
  }

  .form {
    display: flex;
    flex-direction: column;
    justify-content: center;
    user-select: none;

    .title {
      margin: 0 auto;
    }

    .button {
      width: 100%;
    }

    .flex {
      width: 100%;
      display: flex;
      justify-content: space-between;
    }
  }
}
</style>
